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# Directives
1 - National - CPL 02-01-030 [CPL 2-1.30] - Chocking of Tractor Trailer under the Powered Industrial Truck Standard - PDF
2 - National - STD 01-11-007 [STD 1-11.7] - 29 CFR 1910.178(k)(1) and (m)(7): Mechanical Means to Secure Trucks or Trailers to a Loading Dock